I went to Patty and Bun yesterday after
lozette mentioned it. Their burgers are damn good, far superior to Meat Mission, and didn't leave me feeling greasy (like the Meat Mission one did). The patty was medium rare, extremely juicy, and the bun, cheese, pickles etc were all perfect. It was very messy, but worth it. The only (mild) disappointment was the limited range of beers, and lack of description for the two beers that they had that I didn't recognise (I don't like taking too many chances with my beer). I'm feeling quite hungry thinking about the juicy goodness right now.
After that we went to the light show at the Hayward gallery. Tickets were £10, and I think I'd recommend it just for the exhibit by Olafur Eliasson, a room with fountains of water and a strobe light. Disorientating, but great. A couple of things had queues, but it wasn't a problem if you avoided queuing at the same time as everyone else - being the last ones in probably helped here - I can imagine that it could be a problem if we'd gone at an earlier time.
Today I'm trying and failing to do some Max/MSP (hence the update).